A:
Positive:
1 x 302076055 x 604152147 x 642715191 x 158155235 x 128543673 x 44885955 x 316313365 x 8977
Negative:
-1 x -30207605-5 x -6041521-47 x -642715-191 x -158155-235 x -128543-673 x -44885-955 x -31631-3365 x -8977
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 30,207,605, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 30,207,605 | |
| -1 | -30,207,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,207,605.
Example:
1 x 30,207,605 = 30,207,605
and
-1 x -30,207,605 = 30,207,605
Notice both answers equal 30,207,605
With that explanation out of the way, let's continue. Next, we take the number 30,207,605 and divide it by 2:
30,207,605 ÷ 2 = 15,103,802.5
If the quotient is a whole number, then 2 and 15,103,802.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 30,207,605 | |
| -1 | -30,207,605 |
Now, we try dividing 30,207,605 by 3:
30,207,605 ÷ 3 = 10,069,201.6667
If the quotient is a whole number, then 3 and 10,069,201.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 30,207,605 | |
| -1 | -30,207,605 |
Let's try dividing by 4:
30,207,605 ÷ 4 = 7,551,901.25
If the quotient is a whole number, then 4 and 7,551,901.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 30,207,605 | |
| -1 | 30,207,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 191 | 235 | 673 | 955 | 3,365 | 8,977 | 31,631 | 44,885 | 128,543 | 158,155 | 642,715 | 6,041,521 | 30,207,605 |
| -1 | -5 | -47 | -191 | -235 | -673 | -955 | -3,365 | -8,977 | -31,631 | -44,885 | -128,543 | -158,155 | -642,715 | -6,041,521 | -30,207,605 |
Here are some more numbers to try:
Try the factor calculator